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US Patent: 833,699
Plumb Bob
Patentee:
Laroy S. Starrett - Athol, MA

USPTO Classifications:
33/393

Tool Categories:
layout tools : plumb bobs

Assignees:
None

Manufacturer:
L. S. Starrett Co. - Athol, MA

Witnesses:
Willard G. Nims
Frank E. Wing

Patent Dates:
Applied: Feb. 07, 1906
Granted: Oct. 16, 1906

Patent Pictures:
USPTO pdf tiff
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Description:
Slender, mercury filled bob with a notch on the body to allow the cord to be wrapped around the body and be attached to the center.

Produced by Starrett as their No 87 Plumb Bob.

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